Perplexity Is Different From ChatGPT
Unlike ChatGPT, which primarily draws from training data with optional browsing, Perplexity searches the web in real-time for every query. Each Perplexity answer cites its sources inline. This makes Perplexity more transparent about its retrieval — and gives SaaS founders a clearer picture of what is being cited.
What Is Publicly Documented About Perplexity's Retrieval
Perplexity does NOT solely use Bing's index. It runs its own crawler — PerplexityBot — alongside leveraging multiple third-party indexes. The PerplexityBot user agent is documented in Perplexity's help docs and you can verify it crawling your site in your server logs. This means optimizing for Perplexity is not the same as optimizing for Bing.
Beyond that, Perplexity has not published a detailed ranking algorithm. Like other AI engines, the specifics are proprietary and change often.
Patterns We Have Observed (n=4 audits)
Across our 4 published audit teardowns (Fireflies, Linear, Otter, Notta), Perplexity's behavior compared to other engines:
- Perplexity tends to weight third-party review sources (G2, Trustpilot, etc.) more heavily than ChatGPT does. In Notta's audit, this surfaced reliability concerns earlier than other engines.
- Perplexity quotes verbatim more often than ChatGPT, which paraphrases. Pages with quotable specific claims (named customers, exact pricing, specific feature counts) get cited more cleanly.
- Perplexity tends to surface comparison pages when users ask 'X vs Y' queries.
- Recently-updated pages tend to be preferred — consistent with what AI engine documentation generally describes about freshness.
These are qualitative patterns from a small sample. We have not run a controlled study on Perplexity's ranking algorithm.
Optimization Checklist for Perplexity
- Make sure PerplexityBot can crawl your site (check robots.txt for any blocks).
- Structure content with clear H2/H3 headings that match common queries.
- Include comparison tables and numbered lists — quotable structure helps verbatim citation.
- Keep content updated; visible last-updated dates help.
- Add FAQPage schema with 3-5 questions addressing your product specifically.
- Replace logo walls with named-customer outcomes (Perplexity quotes specific facts more than aggregate stats).
- Monitor third-party review sites because Perplexity weights them heavily (positive or negative narrative carries).